An early request definitely doesn't reset the clock.
More than once I've "jumped the gun" by a few days and my CLI was denied, but when I tried again a few days later it was approved. The last time was June 2019.
Oh I didn’t realize we were talking about Citi-backed retail cards instead of Citi credit cards. The rules for all of those will be different, and in many cases a CLI will be a HP.
Ah, me either... yep, that could definitely change things.